Of the ancient Saint Bartholomew fortress-abbey founded in 962 by Bernardo from Linduno, only the church with its beautiful façade preceded by a portico with two arcades remains. The building combines Romanesque-style and Burgundian features. The rectangular portal with doorjambs and architrave decorated with a ribbon carved with vegetable volutes encloses a rich fantastic bestiary which recalls, in the style and decoration theme, the hand of Maestro Acuto, author of the ambon of Pianella.